Add a scoper object for URLFetcher::Factory

chrome/browser/policy/cloud_policy_subsystem_unittest.cc

Index: chrome/browser/policy/cloud_policy_subsystem_unittest.cc
diff --git a/chrome/browser/policy/cloud_policy_subsystem_unittest.cc b/chrome/browser/policy/cloud_policy_subsystem_unittest.cc
index c5b11d7301c8f7f6a564ca4b446763ea60da4f0c..7c1c16a5f7e69e13a8232461da567be6bfd462c4 100644
--- a/chrome/browser/policy/cloud_policy_subsystem_unittest.cc
+++ b/chrome/browser/policy/cloud_policy_subsystem_unittest.cc
@@ -114,7 +114,6 @@ class CloudPolicySubsystemTestBase : public TESTBASE {
 
     logger_.reset(new EventLogger);
     factory_.reset(new TestingPolicyURLFetcherFactory(logger_.get()));
-    URLFetcher::set_factory(factory_.get());
     ASSERT_TRUE(temp_user_data_dir_.CreateUniqueTempDir());
     data_store_.reset(CloudPolicyDataStore::CreateForUserPolicies());
     cache_ = new UserPolicyCache(
@@ -127,7 +126,7 @@ class CloudPolicySubsystemTestBase : public TESTBASE {
   }
 
   virtual void TearDown() {
-    ((TestingBrowserProcess*) g_browser_process)->SetLocalState(NULL);
+    static_cast<TestingBrowserProcess*>(g_browser_process)->SetLocalState(NULL);
     cloud_policy_subsystem_->Shutdown();
     cloud_policy_subsystem_.reset();
     data_store_.reset();